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From: Ralf Baechle <ralf@linux-mips.org>
To: Franck <vagabon.xyz@gmail.com>
Cc: linux-mips@linux-mips.org
Subject: Re: DISCONTIGMEM suuport on 32 bits MIPS
Date: Mon, 26 Sep 2005 14:21:14 +0200	[thread overview]
Message-ID: <20050926122114.GC3175@linux-mips.org> (raw)
In-Reply-To: <cda58cb80509260216591eb96b@mail.gmail.com>

On Mon, Sep 26, 2005 at 11:16:27AM +0200, Franck wrote:

> I'm working on a port of 32bit MIPS to a custom board with several
> large holes in the memory map. I would like to know the status of
> discontiguous memory on MIPS. I have noticed that ip27 Kconfig enables
> this feature but I don't see any MIPS generic code that handles it...

IP27 currently the only system that absolutely needs discontiguous
memory in order to work at all.  A few other systems could make use of
discontiguous memory to reduce the waste of memory - the family of
Broadcom SB1 based systems comes to mind.

> Has anybody already done this ? If not then I'll try to work out what
> needed from the corresponding i386 code, but I'd appreciate any
> pointers.

See IP27.  IP27 has one added extra complexity, it's a NUMA system but
you can ignore that.

  Ralf

  reply	other threads:[~2005-09-26 12:21 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-09-26  9:16 DISCONTIGMEM suuport on 32 bits MIPS Franck
2005-09-26 12:21 ` Ralf Baechle [this message]
2005-09-26 12:46   ` Franck
2005-09-29 23:50     ` Ralf Baechle
2005-09-30 12:40       ` Franck
2005-09-30 13:49         ` Ralf Baechle
2005-09-30 15:35           ` Franck

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